T&T: DC generator

[Peter Bennett]

Wednesday, January 17, 2007, 6:24:28 PM, David&Joan wrote:

DJ> I doubt it would work, the voltages are likely to be wrong. I believe that
DJ> the EU generates AC electricity at some reduced voltage and frequency when
DJ> it is operating in inverter mode. That AC is rectified to DC and then
DJ> inverted back to AC. But I suspect that the DC voltage is in the 100 volt
DJ> range.

If they were clever (and they probably are), the unit would produce
170 volts DC, as that is the peak voltage of 120V AC.

By the way, both sides of the EU2000i output are hot - the "neutral" is
not grounded, but is instead switched between ground and +170, as is
the "hot" wire (but at different times).  Many small "modified sine
wave" inverters also work this way - it saves making a -170V supply.
This will cause a shore power polarity indicator to show a fault, but
should have no effect on the operation of any equipment that will
operate on MSW.


-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Lien Hwa 28 (AKA Polaris 30) "Sea Spray"
GPS and NMEA info: http://vancouver-webpages.com/peter 
Vancouver Power Squadron: http://vancouver.powersquadron.ca